In this lab the rate of germination in relation to temperature was observed testing the hypothesis‚ if the seeds are exposed to cold temperatures then they will not germinate. In the standard germination test a total of one hundred corn seeds were divided into four groups of twenty-five and each group was used to make a ragdoll. The rag dolls were germinated in room temperature. In the cold test one hundred corn seeds were placed on four layers of moist paper towels in the bottom of a metal tray
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----------------------------------------------------------- 7 * CONCLUSION ----------------------------------------------------------- 8 * REFERENCE ----------------------------------------------------------- 9 TITLE Osmotic pressure within red blood cell. INTRODUCTION Osmosis is a passive movement of water molecules going across the partially permeable membrane. It is a very spontaneous process due to the downhill energy flow known as “water potential” by which‚ water molecules
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respiratory system. I predict that whilst carrying out the exercise‚ the breathing rate will considerably increase from resting to working breathing rate. However due to the fitness of the volunteer this breathing rate could be different. As soon as the volunteer has stopped the exercise‚ I predict that the breathing rate will steadily decrease over a number of minutes until it gets back to resting breathing rate. I can justify my prediction as throughout the exercise the oxygen requirement will
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Emmanuela Kubari Period 2 IB Biology SL Cinematic Suspense on the Heart Rate Research question: What is the effect of suspenseful movie scenes from Jaw on the Heart Rate Hypothesis: Suspenseful movies tend to trigger emotional release because films tend to transmit ideas through emotions rather than through intellect. It is an interesting thing to consider‚ given the fact that the person is just sitting there watching images. Therefore‚ it is surprising to see the effects that suspense has on the
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1. The heart rate determines the intensity of the fitness activity. a. 12*6=72 b. 220-21=199 c. 129-150 range. 2. Aerobic metabolism‚ uses fats‚ proteins and carbohydrates that are oxidized and turned into carbon dioxide and water. Anaerobic metabolism‚ uses only carbohydrates and enters the fluid‚ or cytoplasm‚ of the cell and is turned into lactic acid. Aerobic exercises are running‚ biking‚ and swimming‚ whereas anaerobic exercises are sprinting‚ jumping‚ weight training. 3. My activity is considered
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Introductory Activity Heart Rate (pulse) Have the students find their heart pulse on the carotid artery of the neck. Use the index and middle finger to measure the pulse. Count the number of beats for 6 seconds and add a zero to the end of that number. This number represents the heart beats per minute. The heart pulse is located on either side of the wind pipe‚ next to the voice box. Allow the students to practice measuring their pulse to determine their resting heart rate. Explain that they need
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reenters the heart. For this lab‚ the expected outcomes are that when the heart rate and blood pressure are measured‚ both will increase when the heart has to pump against gravity‚ after exercise the heart rate will increase then return to normal‚ and as the subject inhales‚ it will be lower than when they exhale. Methods For this lab report‚ the laboratory manual (2009) was used for all labs. While completing lab five‚ electrodes were hooked up to the subject. After calibration for this lab‚
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INTRODUCTION The measurement of fluid flow is very important in our daily life from measurements of blood-flow rates in human artery to the measurement of liquid oxygen in a rocket. In this experiment‚ students are to adapt to various ways to measure the flow of essentially incompressible fluids by using the flow measuring apparatus. Students will also be able to understand the application of Bernoulli’s equation in this experiment. The flow is measured by using a venture meter‚ an orifice meter
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Pulse and Blood Pressure Lab (after lesson) Objectives: 1. To allow students to formulate and test hypotheses. 2. To allow students to practice taking pulse and blood pressure. Teacher notes: 1. Briefly review of how to take a pulse and a blood pressure (if necessary) 2. Instruct students to pair off 3. Students will fill out the lab worksheet which will help guide them in the lab. Answers to the questions: Using what you know about pulse and blood pressure‚ form a hypothesis about what
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Case Study 1 A&P II Age-Related Changes that Occur in the Cardiovascular System As we age‚ certain changes in the heart are inevitable. Even in the absence of disease‚ the wall of the heart thickens‚ heart rate slows‚ maximum heart rate declines‚ and the heart doesn’t pump as efficiently as it once did. Health problems‚ such as hypertension‚ coronary disease‚ congestive heart failure‚ and myocardial infraction are more common in the elderly and aggravate age- related degenerative change in the
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